Description
W78L801 8-BIT MICROCONTROLLER GENERAL .
The W78L801 is an 8-bit microcontroller which can accommodate a wide range of supply voltages with low power consumption.
Features
* Fully static design 8-bit CMOS microcontroller
* Wide supply voltage of 1.8V to 5.5V
* DC-24 MHz operation
* 256 bytes of on-chip scratchpad RAM
* 4 KB Mask-ROM
* 64 KB program memory address space
* 64 KB data memory address space
Applications
* should elude the ALE pulses before software configure it with I/O port P4.5. Port 4 Bit: 7 6 P4.6 5 P4.5 4 3 P4.3 2 P4.2 1 P4.1 0 P4.0
Mnemonic: P4
Address: D8H
Interrupt System
The W78L801 has twelve interrupt sources: INT0 and INT1 ; Timer 0,1; INT2 to INT9. Each interrupt vectors to a specific